Communication method and apparatus, and chip, chip module and storage medium

Abstract

Disclosed in the present application are a communication method and apparatus, and a chip, a chip module and a storage medium. If no PUSCH transmission on an activated uplink bandwidth part of a first carrier of a first serving cell is configured for a terminal device, or if it is indicated to the terminal device that an independent power control adjustment state is used between an SRS transmission and a PUSCH transmission, or if two power control adjustment states are configured for the terminal device for an SRS transmission, and the two power control adjustment states are independent of a power control adjustment state used for a PUSCH transmission, or if two power control adjustment states are configured for the terminal device for an SRS transmission and are independent of the power control adjustment state used for an PUSCH transmission, and it is indicated to the terminal device that an independent power control adjustment state is used between the SRS transmission and the PUSCH transmission, the terminal device can determine power in a manner which is associated with the power control adjustment states corresponding to the SRS transmission, so as to send an SRS, thereby implementing an uplink transmission.

Description

Communication method, device, chip, chip module and storage medium

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on November 21, 2023, with application number 202311562152.6 and application name “Communication method, device, chip, chip module and storage medium”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a communication method, device, chip, chip module and storage medium. Background Art

[0003] For transmitting a sounding reference signal (SRS), how to determine the power control parameters of the SRS and reasonably perform power control to achieve SRS transmission is an urgent problem to be solved. Summary of the Invention

[0004] The present application provides a communication method, device, chip, chip module and storage medium to determine the power control parameters of an SRS, reasonably perform power control and realize SRS transmission.

[0005] In a first aspect, a communication method is provided, which can be implemented by a terminal device, or a chip or circuit used in the terminal device.

[0006] The method includes: if physical uplink shared channel transmission on the activated uplink part bandwidth of the first carrier of the first service cell is not configured; or if it is indicated that an independent power control adjustment state is adopted between the detection reference signal transmission and the physical uplink shared channel transmission; or if two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission; or if two power control adjustment states are configured for SRS transmission, these two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission, and it is indicated that an independent power control adjustment state is adopted between SRS transmission and PUSCH transmission, determining a first transmit power, and the first transmit power is associated with the first power control adjustment state corresponding to the detection reference signal transmission.

[0007] Alternatively, the method includes: in response to a physical uplink shared channel transmission on an activated uplink portion of the bandwidth of a first carrier that is not configured in a first service cell; or in response to being instructed to adopt an independent power control adjustment state between a sounding reference signal transmission and a physical uplink shared channel transmission; or in response to being configured with two power control adjustment states for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission; or in response to being configured with two power control adjustment states for SRS transmission, these two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission, and being instructed to adopt an independent power control adjustment state between SRS transmission and PUSCH transmission, determining a first transmit power, wherein the first transmit power is associated with the first power control adjustment state corresponding to the sounding reference signal transmission.

[0008] Alternatively, the method includes: if the physical uplink shared channel transmission on the activated uplink portion bandwidth of the first carrier of the first service cell is not configured, determining a first transmit power, wherein the first transmit power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

[0009] Alternatively, the method includes: if it is indicated that independent power control adjustment states are used between the sounding reference signal transmission and the physical uplink shared channel transmission, determining a first transmit power, wherein the first transmit power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

[0010] Alternatively, the method includes: if two power control adjustment states are configured for SRS transmission, and the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, determining a first transmit power, the first transmit power being associated with a first power control adjustment state corresponding to the sounding reference signal transmission. Alternatively, the method includes: if two power control adjustment states are configured for SRS transmission, the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that independent power control adjustment states are used between SRS transmission and PUSCH transmission, determining a first transmit power, the first transmit power being associated with the first power control adjustment state corresponding to the sounding reference signal transmission.

[0011] In a possible implementation, the method further includes: sending the sounding reference signal on the activated uplink partial bandwidth of the first carrier of the first serving cell at a first transmit power.

[0012] In another possible implementation, the first power control adjustment state corresponds to a first index, and the second power control adjustment state corresponding to the physical uplink shared channel transmission corresponds to a second index.

[0013] In another possible implementation, the method further includes: receiving configuration information, where the configuration information is used to configure the first power control adjustment state and / or the second power control adjustment state.

[0014] In another possible implementation, the first transmit power is related to the power control adjustment state h at carrier f, uplink bandwidth b, serving cell c, and transmission timing i of the sounding reference signal. b,f,c (i, l) association, wherein b is the identifier of the activated uplink portion of the bandwidth, f is the identifier of the first carrier, c is the identifier of the first serving cell, i is the index of the transmission timing of the sounding reference signal, and l is the first index.

[0015] Exemplarily, each power control adjustment state has a corresponding power adjustment value.

[0016] In another possible implementation, if the transmit power control-accumulation amount tpc-Accumulation is not provided, the h b,f,c (i,l) satisfies:

[0017] Among them, δ SRS,b,f,c (m, l) is jointly encoded with other TPC commands, and the other TPC commands are located in the downlink control information DCI format 2_3 carried on the physical downlink control channel.

[0018] In another possible implementation, if the transmit power control-accumulation amount tpc-Accumulation is provided, and K before the first symbol of the SRS transmission opportunity i SRS,min Symbol detected DCI format 2_3, the h b,f,c (i,l) satisfies: h b,f,c (i,l)=δ SRS,b,f,c (i,l)

[0019] Among them, δ SRS,b,f,c (m, l) is jointly encoded with other TPC commands, and the other TPC commands are located in DCI format 2_3 carried on the physical downlink control channel.

[0020] In a second aspect, a communication method is provided, which can be implemented by a network device, or a chip or circuit used in a network device.

[0021] The method includes: if the terminal device is not configured for physical uplink shared channel transmission on the activated uplink part bandwidth of the first carrier of the first service cell; or if the terminal device is instructed to adopt an independent power control adjustment state between the detection reference signal transmission and the physical uplink shared channel transmission; or if two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission; or if two power control adjustment states are configured for SRS transmission, these two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission, and it is instructed to adopt an independent power control adjustment state between SRS transmission and PUSCH transmission, receiving the detection reference signal sent by the terminal device at a first transmission power on the activated uplink part bandwidth of the first carrier of the first service cell, and the first transmission power is associated with the first power control adjustment state corresponding to the detection reference signal transmission.

[0022] Alternatively, the method includes: in response to a physical uplink shared channel transmission on the activated uplink portion of the bandwidth of the first carrier of the first service cell by an unconfigured terminal device; or in response to being instructed to adopt an independent power control adjustment state between the sounding reference signal transmission and the physical uplink shared channel transmission of the terminal device; or in response to being configured with two power control adjustment states for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission; or in response to being configured with two power control adjustment states for SRS transmission, these two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission, and being instructed to adopt an independent power control adjustment state between SRS transmission and PUSCH transmission, receiving the sounding reference signal sent by the terminal device at a first transmit power on the activated uplink portion of the bandwidth of the first carrier of the first service cell, the first transmit power being associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

[0023] Alternatively, the method includes: if the terminal device is not configured for physical uplink shared channel transmission on the activated uplink portion of the bandwidth of the first carrier of the first service cell, receiving the sounding reference signal sent by the terminal device at a first transmission power on the activated uplink portion of the bandwidth of the first carrier of the first service cell, the first transmission power being associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

[0024] Alternatively, the method includes: if the terminal device is instructed to adopt an independent power control adjustment state between the sounding reference signal transmission and the physical uplink shared channel transmission, receiving the sounding reference signal sent by the terminal device at a first transmission power on the activated uplink partial bandwidth of the first carrier of the first service cell, the first transmission power being associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

[0025] Alternatively, the method includes: if two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, receiving the sounding reference signal sent by the terminal device at a first transmission power on the activated uplink portion bandwidth of the first carrier of the first service cell, the first transmission power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

[0026] Alternatively, the method includes: if two power control adjustment states are configured for SRS transmission, these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that independent power control adjustment states are used between SRS transmission and PUSCH transmission, receiving the sounding reference signal sent by the terminal device at a first transmission power on the activated uplink part bandwidth of the first carrier of the first service cell, and the first transmission power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

[0027] In a possible implementation, the first power control adjustment state corresponds to a first index, and the second power control adjustment state corresponding to the physical uplink shared channel transmission corresponds to a second index.

[0028] In another possible implementation, the method further includes: sending configuration information, where the configuration information is used to configure the first power control adjustment state and / or the second power control adjustment state.

[0029] In another possible implementation, the first transmit power is related to the power control adjustment state h at carrier f, uplink bandwidth b, serving cell c, and transmission timing i of the sounding reference signal. b,f,c (i, l) association, wherein b is the identifier of the activated uplink portion of the bandwidth, f is the identifier of the first carrier, c is the identifier of the first serving cell, i is the index of the transmission timing of the sounding reference signal, and l is the first index.

[0030] Exemplarily, each power control adjustment state has a corresponding power adjustment value.

[0031] In another possible implementation, if the transmit power control-accumulation amount tpc-Accumulation is not provided, the h b,f,c (i,l) satisfies:

[0032] Among them, δ SRS,b,f,c (m, l) is jointly encoded with other TPC commands, and the other TPC commands are located in the downlink control information DCI format 2_3 carried on the physical downlink control channel.

[0033] In another possible implementation, if the transmit power control-accumulation amount tpc-Accumulation is provided, and K before the first symbol of the SRS transmission opportunity i SRS,min Symbol detected DCI format 2_3K SRS,min Symbol, the h b,f,c (i,l) satisfies: h b,f,c (i,l)=δ SRS,b,f,c (i,l)

[0034] Among them, δ SRS,b,f,c (m, l) is jointly encoded with other TPC commands, and the other TPC commands are located in DCI format 2_3 carried on the physical downlink control channel.

[0035] In a third aspect, a communication device is provided that can implement the communication method described in the first aspect or any one of the first aspects. For example, the communication device can be a chip or a terminal device. The method can be implemented through software, hardware, or hardware executing corresponding software.

[0036] In one possible implementation, the communication device includes: a processing unit, and may also include a transceiver unit. The processing unit is configured to determine a first transmit power if physical uplink shared channel transmission on the activated uplink portion of the bandwidth of the first carrier of the first serving cell is not configured; or if it is instructed to use an independent power control adjustment state between sounding reference signal transmission and physical uplink shared channel transmission; or if two power control adjustment states are configured for SRS transmission, and the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission; or if two power control adjustment states are configured for SRS transmission, the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is instructed to use an independent power control adjustment state between SRS transmission and PUSCH transmission, and the first transmit power is associated with the first power control adjustment state corresponding to the sounding reference signal transmission.

[0037] Alternatively, the processing unit is used to determine a first transmit power in response to a physical uplink shared channel transmission on an activated uplink portion of the bandwidth of the first carrier that is not configured in the first service cell; or in response to being instructed to adopt an independent power control adjustment state between the sounding reference signal transmission and the physical uplink shared channel transmission; or in response to being configured with two power control adjustment states for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission; or in response to being configured with two power control adjustment states for SRS transmission, these two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission, and being instructed to adopt an independent power control adjustment state between SRS transmission and PUSCH transmission, and the first transmit power is associated with the first power control adjustment state corresponding to the sounding reference signal transmission.

[0038] Alternatively, the processing unit is used to determine a first transmit power if the physical uplink shared channel transmission on the activated uplink portion bandwidth of the first carrier of the first service cell is not configured, and the first transmit power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

[0039] Alternatively, the processing unit is configured to determine a first transmit power if it is instructed to use an independent power control adjustment state between the sounding reference signal transmission and the physical uplink shared channel transmission, wherein the first transmit power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

[0040] Alternatively, the processing unit is used to determine a first transmit power if two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and the first transmit power is associated with the first power control adjustment state corresponding to the detection reference signal transmission.

[0041] Alternatively, the processing unit is configured to, if two power control adjustment states are configured for SRS transmission, the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and independent power control adjustment states are used between SRS transmission and PUSCH transmission, determine a first transmit power, the first transmit power being associated with the first power control adjustment state corresponding to the sounding reference signal transmission. Optionally, the transceiver unit is configured to transmit the sounding reference signal on the activated uplink portion of the bandwidth of the first carrier of the first serving cell at the first transmit power.

[0042] Optionally, the first power control adjustment state corresponds to a first index, and the second power control adjustment state corresponding to the physical uplink shared channel transmission corresponds to a second index.

[0043] Optionally, the transceiver unit is further used to receive configuration information, where the configuration information is used to configure the first power control adjustment state and / or the second power control adjustment state.

[0044] Optionally, the first transmit power is related to the power control adjustment state h at carrier f, uplink bandwidth b, serving cell c, and transmission timing i of the sounding reference signal. b,f,c (i, l) association, wherein b is the identifier of the activated uplink portion of the bandwidth, f is the identifier of the first carrier, c is the identifier of the first serving cell, i is the index of the transmission timing of the sounding reference signal, and l is the first index.

[0045] Exemplarily, each power control adjustment state has a corresponding power adjustment value.

[0046] Optionally, if the transmit power control-accumulation amount tpc-Accumulation is not provided, the h b,f,c (i,l) satisfies:

[0047] Among them, δ SRS,b,f,c (m, l) is jointly encoded with other TPC commands, and the other TPC commands are located in the downlink control information DCI format 2_3 carried on the physical downlink control channel.

[0048] Optionally, if the transmit power control-accumulation amount tpc-Accumulation is provided, and K before the first symbol of the SRS transmission opportunity i SRS,min Symbol DCI format 2_3, the h b,f,c (i,l) satisfies: h b,f,c (i,l)=δ SRS,b,f,c (i,l)

[0049] Among them, δ SRS,b,f,c (m, l) is jointly encoded with other TPC commands, and the other TPC commands are located in DCI format 2_3 carried on the physical downlink control channel.

[0050] In a fourth aspect, a communication device is provided that can implement the communication method described in the second aspect or any one of the second aspects. For example, the communication device can be a chip or a network device. The method can be implemented through software, hardware, or hardware executing corresponding software.

[0051] In one possible implementation, the communication device includes: a transceiver unit, and may also include a processing unit. The transceiver unit is configured to receive the sounding reference signal sent by the terminal device on the activated uplink portion of the bandwidth of the first carrier of the first service cell at a first transmit power if physical uplink shared channel transmission on the activated uplink portion of the bandwidth of the first carrier of the first service cell is not configured; or if it is instructed to use an independent power control adjustment state between sounding reference signal transmission and physical uplink shared channel transmission; or if two power control adjustment states are configured for SRS transmission, and the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission; or if two power control adjustment states are configured for SRS transmission, the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is instructed to use an independent power control adjustment state between SRS transmission and PUSCH transmission, wherein the first transmit power is associated with the first power control adjustment state corresponding to the sounding reference signal transmission.

[0052] Alternatively, the transceiver unit is used to, in response to a physical uplink shared channel transmission on the activated uplink portion of the bandwidth of the first carrier that is not configured in the first service cell; or in response to being instructed to adopt an independent power control adjustment state between the sounding reference signal transmission and the physical uplink shared channel transmission; or in response to being configured with two power control adjustment states for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission; or in response to being configured with two power control adjustment states for SRS transmission, these two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission, and being instructed to adopt an independent power control adjustment state between SRS transmission and PUSCH transmission, receive the sounding reference signal sent by the terminal device at a first transmit power on the activated uplink portion of the bandwidth of the first carrier of the first service cell, the first transmit power being associated with the first power control adjustment state corresponding to the sounding reference signal transmission.

[0053] Alternatively, the transceiver unit is used to receive the sounding reference signal sent by the terminal device on the activated uplink portion of the bandwidth of the first carrier of the first service cell at a first transmission power if the physical uplink shared channel transmission of the terminal device on the activated uplink portion of the bandwidth of the first carrier of the first service cell is not configured, and the first transmission power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

[0054] Alternatively, the transceiver unit is used to receive the sounding reference signal sent by the terminal device at a first transmission power on the activated uplink portion bandwidth of the first carrier of the first service cell if it is instructed to adopt an independent power control adjustment state between the sounding reference signal transmission and the physical uplink shared channel transmission of the terminal device, and the first transmission power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

[0055] Alternatively, the transceiver unit is used to receive the sounding reference signal sent by the terminal device at a first transmission power on the activated uplink portion bandwidth of the first carrier of the first service cell if two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and the first transmission power is associated with the first power control adjustment state corresponding to the sounding reference signal transmission.

[0056] Alternatively, the transceiver unit is used to, if configured with two power control adjustment states for SRS transmission, these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and is instructed to use independent power control adjustment states between SRS transmission and PUSCH transmission, receive the sounding reference signal sent by the terminal device at a first transmit power on the activated uplink portion bandwidth of the first carrier of the first service cell, where the first transmit power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

[0057] Optionally, the first power control adjustment state corresponds to a first index, and the second power control adjustment state corresponding to the physical uplink shared channel transmission corresponds to a second index.

[0058] Optionally, the transceiver unit is further used to send configuration information, where the configuration information is used to configure the first power control adjustment state and / or the second power control adjustment state.

[0059] Optionally, the first transmit power is related to the power control adjustment state h at carrier f, uplink bandwidth b, serving cell c, and transmission timing i of the sounding reference signal. b,f,c (i, l) association, wherein b is the identifier of the activated uplink portion of the bandwidth, f is the identifier of the first carrier, c is the identifier of the first serving cell, i is the index of the transmission timing of the sounding reference signal, and l is the first index.

[0060] Exemplarily, each power control adjustment state has a corresponding power adjustment value.

[0061] Optionally, if the transmit power control-accumulation amount tpc-Accumulation is not provided, the h b,f,c (i,l) satisfies:

[0062] Among them, δ SRS,b,f,c (m, l) is jointly encoded with other TPC commands, and the other TPC commands are located in the downlink control information DCI format 2_3 carried on the physical downlink control channel.

[0063] Optionally, if the transmit power control-accumulation amount tpc-Accumulation is provided, and K before the first symbol of the SRS transmission opportunity i SRS,min Symbol detected DCI format 2_3, the h b,f,c (i,l) satisfies: h b,f,c (i,l)=δ SRS,b,f,c (i,l)

[0064] Among them, δ SRS,b,f,c (m, l) is jointly encoded with other TPC commands, and the other TPC commands are located in DCI format 2_3 carried on the physical downlink control channel.

[0065] In combination with any one of the first and second aspects, in another possible implementation, the communication device in any one of the first and second aspects includes a processor coupled to a memory; the processor is configured to support the device in performing the corresponding functions in the above-mentioned communication method. The memory is used to couple with the processor, which stores the necessary programs (instructions) and / or data for the device. Optionally, the communication device may further include a communication interface for supporting communication between the device and other network elements. Optionally, the memory may be located inside the communication device or outside the communication device.

[0066] In combination with any one of the first to second aspects, in another possible implementation, the communication device in any one of the first to second aspects includes a processor and a transceiver, the processor is coupled to the transceiver, and the processor is used to execute a computer program or instruction to control the transceiver to receive and send information; when the processor executes the computer program or instruction, the processor is also used to implement the above method through a logic circuit or execute code instructions. The transceiver can be a transceiver, a transceiver circuit or an input-output interface, which is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device. When the communication device is a chip, the transceiver is a transceiver circuit or an input-output interface.

[0067] When the communication device in any of the first and second aspects is a chip or chip module, the sending unit may be an output unit, such as an output circuit or a communication interface; and the receiving unit may be an input unit, such as an input circuit or a communication interface. When the communication device is a terminal device or a network device, the sending unit may be a transmitter or a transmitter; and the receiving unit may be a receiver or a receiver.

[0068] In a fifth aspect, a computer-readable storage medium is provided, in which a computer program or instruction is stored. When the computer program or instruction is executed, the methods described in the above aspects are implemented.

[0069] In a sixth aspect, a computer program product comprising instructions is provided, which, when executed on a computer, enables the computer to execute the methods described in the above aspects.

[0070] In a seventh aspect, a communication system is provided, which includes the communication device described in the third aspect and the communication device described in the fourth aspect.

[0071] The solution of this application has the following beneficial effects:

[0072] If PUSCH transmission on the activated uplink portion of the bandwidth of the first carrier of the first service cell is not configured; or if it is indicated that an independent (separate) power control adjustment state is adopted between SRS transmission and PUSCH transmission; or if two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission; or if two power control adjustment states are configured for SRS transmission, these two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission, and it is indicated that an independent power control adjustment state is adopted between SRS transmission and PUSCH transmission, the terminal device can determine the power in a manner associated with the power control adjustment state corresponding to the SRS transmission and then send the SRS to achieve uplink transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] FIG1A is a schematic diagram of a communication system according to an embodiment of the present application;

[0074] FIG1B is a schematic diagram of another communication system involved in an embodiment of the present application;

[0075] FIG2 is a schematic diagram of another communication system involved in an embodiment of the present application;

[0076] FIG3 is a schematic diagram of an exemplary communication scenario;

[0077] FIG4 is a flow chart of a communication method provided in an embodiment of the present application;

[0078] FIG5 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0079] FIG6 is a schematic structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0080] The solution provided by the embodiments of the present application is described below with reference to the accompanying drawings.

[0081] FIG1A is a schematic diagram of a communication system involved in an embodiment of the present application. The communication system may include one or more network devices (only one is shown in the figure) and one or more terminal devices connected to the network devices. A network device can transmit data or control signaling to one or more terminal devices. In another communication system as shown in FIG1B , multiple network devices can also simultaneously transmit data or control signaling to a terminal device.

[0082] The network device can be any device with wireless transceiver functions, including but not limited to: base station (NodeB), evolved base station (eNodeB), base station in 5G communication system, base station or network device in future communication system, access node in Wi-Fi system, wireless relay node, wireless backhaul node, etc. The network device can also be a wireless controller in the cloud radio access network (CRAN) scenario. The network device can also be a small station, a transmission reference point (TRP), etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device.

[0083] A terminal device is a device with wireless transceiver capabilities that can be deployed on land (including indoors or outdoors) and can be handheld, wearable, or vehicle-mounted; it can also be deployed on water, such as on ships; it can also be deployed in the air, such as on airplanes, balloons, and satellites. The terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a wearable device, a drone, a helicopter, an airplane, a ship, a robot, a robotic arm, a smart home device, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a complete vehicle, a functional module in a vehicle, a wireless terminal device in remote medical care, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city (e.g., streetlights), a wireless terminal device in a smart home, etc. The embodiments of the present application do not limit the application scenarios. The terminal device may also be sometimes referred to as user equipment (UE), access terminal device, UE unit, mobile station, mobile station, remote station, remote terminal device, mobile device, terminal device (terminal), wireless communication device, UE agent or UE apparatus, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal device.

[0084] Optionally, in an embodiment of the present application, a terminal device or a network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also known as main memory). The operating system can be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. The application layer includes applications such as browsers, address books, word processing software, and instant messaging software. In addition, the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided in the embodiment of the present application. It can communicate according to the method provided in the embodiment of the present application by running a program that records the code of the method provided in the embodiment of the present application. For example, the execution subject of the method provided in the embodiment of the present application can be a terminal device or a network device, or a functional module in the terminal device or network device that can call and execute a program.

[0085] In other words, the relevant functions of the terminal device or network device in the embodiments of the present application can be implemented by a single device, or by multiple devices together, or by one or more functional modules within a single device, and the embodiments of the present application do not specifically limit this. It is understood that the above functions can be network elements in hardware devices, software functions running on dedicated hardware, or a combination of hardware and software, or virtualized functions instantiated on a platform (e.g., a cloud platform).

[0086] The communication between the network device and the terminal device in the communication system shown in Figures 1A and 1B can also be represented in another form. As shown in Figure 2, terminal device 10 includes a processor 101, a memory 102, and a transceiver 103. Transceiver 103 includes a transmitter 1031, a receiver 1032, and an antenna 1033. Network device 20 includes a processor 201, a memory 202, and a transceiver 203. Transceiver 203 includes a transmitter 2031, a receiver 2032, and an antenna 2033. Receiver 1032 can be configured to receive transmission control information via antenna 1033, and transmitter 1031 can be configured to send transmission feedback information to network device 20 via antenna 1033. Transmitter 2031 can be configured to send transmission control information to terminal device 10 via antenna 2033, and receiver 2032 can be configured to receive transmission feedback information sent by terminal device 10 via antenna 2033.

[0087] The processor 101 / processor 201 may be a CPU, a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application.

[0088] The memory 102 / memory 202 may be a device having a storage function. For example, it may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, an optical disc storage (including a compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory may exist independently and be connected to the processor via a communication line. The memory may also be integrated with the processor.

[0089] Memory 102 / memory 202 is used to store computer-executable instructions for executing the solution of the present application, and is controlled by processor 101 / processor 201. Processor 101 / processor 201 is used to execute the computer-executable instructions stored in memory 102 / memory 202, thereby implementing the communication method provided in the embodiments of the present application.

[0090] Alternatively, in the embodiment of the present application, the processor 101 / processor 201 may also perform processing-related functions in the communication method provided in the following embodiments of the present application.

[0091] The computer-executable instructions in the embodiments of the present application may also be referred to as application code, which is not specifically limited in the embodiments of the present application.

[0092] In some possible implementations, the network device may be any one of the multiple sites that perform coherent joint transmission (CJT) with the terminal device, or another site outside the multiple sites, or another network device that performs network communication with the terminal device, and there is no specific limitation on this. Among them, multi-site coherent joint transmission may be multiple sites coherent transmission, or different data belonging to the same physical downlink shared channel (PDSCH) are sent from different sites to the terminal device, or multiple sites are virtualized into one site for transmission. Names with the same meaning specified in other standards also apply to this application, that is, this application does not limit the names of these parameters. The sites in multi-site coherent joint transmission may be remote radio heads (RRHs), TRPs, etc., and there is no specific limitation on this.

[0093] In some possible implementations, the network device may be any one of the multiple sites that perform incoherent joint transmission with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, and there is no specific limitation on this. Among them, the multi-site incoherent joint transmission can be a multi-site joint incoherent transmission, or different data belonging to the same PDSCH is sent from different sites to the terminal device. The names with the same meaning specified in other standards are also applicable to this application, that is, this application does not limit the names of these parameters. The sites in the multi-site incoherent joint transmission can be RRH, TRP, etc., and there is no specific limitation on this. The transmission scheme of multiple TRPs may include a multi-TRP (single-downlink control information based M-TRP, S-DCI based M-TRP) transmission scheme based on single downlink control information, and may also include a multi-TRP (M-DCI based M-TRP) transmission scheme based on multiple downlink control information.

[0094] Among them, M-DCI based M-TRP can be reflected as the network configuring multiple control resource set pool identifiers (coresetPoolIndex) values, such as coresetPoolIndex = 0, coresetPoolIndex = 1. Of course, M-DCI based M-TRP can also be reflected in other ways, which are not specifically limited.

[0095] Among them, S-DCI based M-TRP can be embodied as follows: one DCI can indicate multiple transmission configuration indicator (TCI) states, or one DCI can include multiple sounding reference signal resource indication (SRS resource indicator, SRI) fields. Of course, S-DCI based M-TRP can also be embodied in other ways, which are not specifically limited.

[0096] It should be noted that the TRP of the present application is not limited to coherent joint transmission or incoherent joint transmission scenarios, but can also be applied to other scenarios without specific restrictions.

[0097] In some possible implementations, the network device may have a mobile feature, for example, the network device may be a mobile device. Alternatively, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Alternatively, the network device may be a base station located on land, water, or the like.

[0098] In some possible implementations, a network device may provide services for a cell, and a terminal device in the cell may communicate with the network device using transmission resources (e.g., spectrum resources). The cell may be a macro cell, a small cell, a metro cell, a micro cell, a pico cell, or a femto cell.

[0099] In some possible implementations, the network device described in the embodiments of the present application may be a chip, a chip module, a device, a unit, etc., without specific limitation.

[0100] (1) TRP:

[0101] It should be noted that the new communication scenarios mentioned in this application may involve multiple-transmission and reception point (M-TRP), M-TRP based on multiple downlink control information (M-DCI based M-TRP), M-TRP based on single DCI (S-DCI based M-TRP) and other communication scenarios.

[0102] M-DCI based M-TRP can be reflected in that the network will configure multiple control resource set pool index (CORESET pool index, CORESETPoolIndex) values, such as CORESETPoolIndex = 0 and CORESETPoolIndex = 1. It can also be reflected in that the network will configure the control resource set pool index (CORESET pool index, CORESETPoolIndex) value, such as CORESETPoolIndex = 1. Of course, M-DCI based M-TRP is reflected through other concepts / parameters and is not specifically limited to this.

[0103] S-DCI based M-TRP can be reflected in that one DCI can indicate multiple TCI states, or one DCI can include multiple sounding reference signal resource indicator (SRS resource indicator, SRI) fields, etc. Of course, S-DCI based M-TRP can also be reflected through other concepts / parameters, which are not specifically limited.

[0104] In some possible implementations, TRP can be a functional module (for example, implemented using software functions) or can be implemented through hardware, and there is no specific limitation on this.

[0105] In some possible implementations, TRP can be characterized by parameters such as TCI status, sounding reference signal (SRS) resources, SRS resource set, spatial information, CORESETPoolIndex, timing advance group (TAG) identifier (ID), SRI, and the value of the TCI selection field.

[0106] That is to say, parameters such as TCI status, SRS resources, SRS resource set, airspace information, CORESETPoolIndex, TAG ID, SRI, etc. can also be regarded as TRP.

[0107] In some possible implementations, TRP can be associated with spatial information or a slot direction (e.g., a beam or a group of beams); or, TRP can be characterized by spatial information or a slot direction (e.g., a beam or a group of beams); or, TRP can be characterized by power control parameters.

[0108] In some possible implementations, a TRP can be a network node, a radio head, a spatial relation, or a transmission configuration indication state. In some embodiments, a TRP can be represented by a spatial relation or a TCI state. In some embodiments, a TRP can use multiple TCI states. In some embodiments, a TRP can be part of a gNB that sends / receives radio signals to / from a terminal device based on the physical layer properties and parameters inherent to that component. In some embodiments, in multi-TRP (multi-TRP) operation, a serving cell can schedule a terminal device from two TRPs, thereby providing better PDSCH coverage, reliability, and / or data rate. Multi-TRP has two different operating modes: single downlink control information (DCI) and multiple DCI. For both modes, control of uplink and downlink operations is performed by the physical layer and media access control (MAC). In single DCI mode, the terminal device is scheduled by the same DCI from both TRPs, while in multi-DCI mode, the terminal device is scheduled by independent DCI from each TRP.

[0109] In some embodiments, a set of transmission points (TPs) is a set of geographically co-located transmit antennas, such as antenna arrays (having one or more antenna elements), for a cell, a portion of a cell, or a positioning reference signal (PRS) for PRS-only TPs. TPs can include base station (eNB) antennas, remote radio heads (RRHs), remote antennas of base stations, antennas of PRS-only TPs, and so on. A cell can consist of one or more TPs. For homogeneous deployments, each TP can correspond to a cell.

[0110] In some embodiments, a group of TRPs is a group of geographically co-located antennas, eg, an antenna array (having one or more antenna elements), supporting TP and / or reception point (RP) functionality.

[0111] Note that the description given herein focuses on 3GPP cellular communication systems and therefore 3GPP terminology or similar to 3GPP terminology is often used. However, the concepts disclosed herein are not limited to 3GPP systems.

[0112] (2) Existing methods for determining SRS transmission power:

[0113] The following description is from 3GPP TS 38.213: "NR; Physical layer procedures for control", but the concepts herein are not limited to 3GPP systems. The following description provides only one example of obtaining SRS transmission power. This application does not limit the ability to change the method for obtaining SRS transmission power in response to the evolution of communication technologies, such as any variation of the formula for determining SRS transmission power.

[0114] If the UE transmits SRS on the activated uplink (UL) bandwidth part (BWP) b of carrier f of serving cell c using the SRS power control adjustment state with index l based on the configuration of SRS-ResourceSet, the UE determines the SRS transmission power P of SRS at SRS transmission opportunity i. SRS,b,f,c (i,q s ,l)Satisfy:

[0115] Among them, P CMAX,f,c (i) is the maximum output power of the UE for carrier f of serving cell c for SRS transmission opportunity i as defined in [8, TS 38.101-1], [8-2, TS 38.101-2] and [TS 38.101-3];

[0116] P O_SRS,b,f,c (q s) represents the SRS resource set q in the SRS transmission opportunity i of the activated UL BWP b of the carrier f of the serving cell c. s The target receiving power can be configured by parameters p0, q s It is provided by SRS-ResourceSet and SRS-ResourceSetId.

[0117] M SRS,b,C,( (i) is an SRS bandwidth expressed in terms of the number of resource blocks used for SRS transmission opportunity i on UL BWP b of carrier f serving cell c, and μ is the SCS configuration defined in [4, TS 38.211].

[0118] α SRS,b,f,c (q s ) is provided by alpha, where alpha is used for the SRS resource set q on the UL BWP b of carrier f serving cell c. s .

[0119] PL b,f,c (q d ) is a downlink path loss estimation, its unit is dB, which is calculated by UE using RS resource index q d and SRS resource set q s Calculated, the q d The UL BWP b for carrier f serving cell c is described in clause 7.1.1 [TS38.213]. s Described in [6, TS 38.214].

[0120] For the activated UL BWP b and SRS transmission opportunity i for carrier f of serving cell c:

[0121] (1) If srs-PowerControlAdjustmentStates indicates the same power control adjustment state for SRS transmission and physical uplink shared channel (PUSCH) transmission, then h b,f,c (i,l)=f b,f,c (i,l), where f b,f,c (i,l) is the current PUSCH power control adjustment state as defined in clause 7.1.1 [TS38.213]; or

[0122] (2) If the UE is not configured for PUSCH transmission on the activated UL BWP b of carrier f of serving cell c, or srs-PowerControlAdjustmentStates indicates independent power control adjustment states for SRS and PUSCH transmissions, and tpc-Accumulation is not provided, then Among them, δ SRS,b,f,c The values ​​are given in Table 7.1.1-1 [TS38.213];

[0123] δ SRS,b,f,c (m) is jointly encoded with other transmit power control (TPC) commands, which are located in DCI format 2_3 carried on the PDCCH;

[0124] is the TPC command value set S i The sum of the TPC command values ​​in K SRS (i-i0)-1 symbol and K SRS (i) Receive the TPC command value set S between symbols i , where K SRS The (i-i0)-1 symbol is located before the SRS transmission opportunity i-i0, K SRS (i) Symbols are located before the SRS transmission opportunity i on the activated UL BWP b of the carrier f of the serving cell c in the SRS power control adjustment state, where K before the SRS transmission opportunity i-i0 SRS (i) symbol, which is earlier than the K before SRS transmission opportunity i SRS (i-i0) symbol, i0>0 is the smallest integer ( is a sum of TPC command values ​​in a set S i of TPC command values ​​with cardinality C(S i )that the UE receives between K SRS (i-i0)-1 symbols before SRS transmission occasion i-i0 and K SRS(i)symbols before SRS transmission occasion i on active UL BWP b of carrier f of serving cell c for SRS power control adjustment state,where i0>0 is the smallest integer for which K SRS (i)symbols before SRS transmission occasion i-i0 is earlier than K SRS (i-i0)symbols before SRS transmission occasion i). The above gives The meaning of this parameter can be understood accordingly with the evolution of communication technology;

[0125] If SRS transmission is aperiodic, K SRS (i) is the number of symbols of the activated UL BWP b corresponding to carrier f of serving cell c after the last symbol of the corresponding PDCCH that triggers SRS transmission and before the first symbol of SRS transmission;

[0126] If SRS transmission is semi-persistent or periodic, K SRS (i) is K SrS,min The number of symbols, which is equivalent to the number of symbols per time slot The product of the minimum value provided by k2 in PUSCH-ConfigCommon and the activated UL BWP b for carrier f of serving cell c;

[0127] - If the first symbol of the SRS transmission opportunity occurs at T proc,2 Within, which is located after the last symbol received by the PDCCH, wherein for said PDCCH, the UE detects the DCI format provided by the TPC command, the UE may delay the application of TPC until the above conditions are invalid. proc,2 is the PUSCH preparation time corresponding to the UE processing capability, assuming d 2,1 =0, and μ corresponds to the minimum SCS configuration between the sub-carrier space (SCS) configuration of the PDCCH carrying the DCI format and the SCS configuration of the SRS.

[0128] If at SRS transmission opportunity i-i0, the UE reaches the maximum power of the activated UL BWP b for carrier f of serving cell c, and Then h b,f,c (i) = h b,f,c (i-i0);

[0129] If at SRS transmission opportunity i-i0, the UE reaches the minimum power of the activated UL BWP b for carrier f of serving cell c, and Then h b,f,c (i) = h b,f,c (i-i0);

[0130] If the higher layer provides the UL BWP b for the activation of carrier f in serving cell c, the UL BWP b for the corresponding SRS power control adjustment state l for P O_SRS,b,f,c (q s ) value configuration, or for α SRS,b,f,c (q s ) value configuration: h b,f,c (k)=0,k=0,1,…,i

[0131] Otherwise, h b,f,c (0) = ΔP rampup,b,f,c +δ b,f,c

[0132] in:

[0133] δ b,f,c is the TPC command value indicated in a random access response grant corresponding to a physical random access channel (PRACH) transmission of a Type-1 random access procedure, or corresponding to an MsgA transmission of a Type-2 random access procedure with a random access response (RAR) message for feedback, or δ b,f,c ΔP is the TPC command value indicated in a successful RAR corresponding to the MsgA transmission for the Type-2 random access procedure. rampup,b,f,c =min[max(0,P CMAX,f,c -(P O_SRS,b,f,c (q s )+10log 10 (2 μ ·M SRS,b,f,c (i))+ α sRS,b,f,c (q s )·PL b,f,c (q d ))),ΔPrampup_requested,b,f,c];

[0134] Wherein, ΔPrampup_requested,b,f,c is provided by the higher layer, and corresponds to the entire power capacity (power ramp-up) from the first to the last preamble of the activated UL BWP b for carrier f serving cell c requested by the higher layer.

[0135] (3) If the UE is not configured for PUSCH transmission on the activated UL BWP b of carrier f of serving cell c, or if srs-PowerControlAdjustmentStates indicates that separate power control adjustment states are used between SRS transmission and PUSCH transmission, and tpc-Accumulation is provided, and K before the first symbol of SRS transmission opportunity i SRS,min Symbol UE detects a DCI format 2_3 (the UE detects a DCI format 2_3 K SRS,min symbols before a first symbol of SRS transmission occasion i), then h b,f,c (i) = δ SRS,b,f,c (i), where δ is provided in Table 7.1.1-1 [TS38.213] SRS,b,f,c The absolute value of .

[0136] If srs-PowerControlAdjustmentStates indicates that the same power control adjustment state is used for both SRS and PUSCH transmissions, the power control adjustment state for SRS transmission opportunity i is updated at SRS resource set q. s Otherwise, the power control adjustment state of SRS transmission opportunity i is updated at the beginning of each SRS resource in SRS resource set q. s The start of the first transmitted SRS resource.

[0137] With the development of communication technology, scenarios in which multiple TRPs collaborate have emerged. How to achieve the goal of meeting various uplink rate requirements while reducing network deployment costs in these scenarios is a technical problem that needs to be solved urgently.

[0138] When a high rate is required for uplink transmission, it is possible to consider requiring only some TRPs (such as one TRP) to support downlink transmission with the terminal device, while some TRPs only support uplink transmission with the terminal. Compared with the existing technology where each TRP needs to support both uplink and downlink transmission with the terminal device, this application can save network deployment costs.

[0139] For example, there may be a communication scenario as shown in Figure 3: downlink is a single TRP transmission, and uplink is multiple TRP transmission. In Figure 3, only TRP1 sends downlink, while the terminal device can send uplink to any one, two, or three of TRP1, TRP2, and TRP3. This uplink can include transmission data and reference signals (e.g., SRS). This data is carried on the PUSCH.

[0140] For the above scenario, how to determine the power control parameters of the SRS, reasonably perform power control, and realize the transmission of the SRS is an urgent problem to be solved.

[0141] To this end, the present application provides a communication solution. If PUSCH transmission on the activated uplink portion of the bandwidth of the first carrier of the first service cell is not configured; or if an independent (separate) power control adjustment state is indicated between SRS transmission and PUSCH transmission; or if two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission; or if two power control adjustment states are configured for SRS transmission, these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and an independent power control adjustment state is indicated between SRS transmission and PUSCH transmission, the terminal device can determine the power in a manner associated with the power control adjustment state corresponding to the SRS transmission and then send the SRS to achieve uplink transmission.

[0142] As shown in Figure 4, it is a flow chart of a communication method provided in an embodiment of the present application. Exemplarily, the method may include the following steps:

[0143] S401. If the PUSCH transmission on the activated uplink portion of the bandwidth of the first carrier of the first serving cell is not configured; or

[0144] If it is instructed to use independent power control adjustment states between SRS transmission and PUSCH transmission; or

[0145] If two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission; or

[0146] If two power control adjustment states are configured for SRS transmission, these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that independent power control adjustment states are used between SRS transmission and PUSCH transmission;

[0147] The UE determines a first transmit power.

[0148] In an optional embodiment, two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission. It can be understood that two power control adjustment state indexes are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission.

[0149] In an optional embodiment, two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission. It can be understood that two power control adjustment state indexes are configured for SRS transmission, and the power control adjustment states corresponding to these two power control adjustment state indexes are independent of the power control adjustment state used for PUSCH transmission.

[0150] In an optional embodiment, two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission. It can be understood that multiple power control adjustment state indexes are configured for SRS transmission, wherein the power control adjustment states corresponding to the two power control adjustment state indexes are independent of the power control adjustment state adopted for PUSCH transmission.

[0151] In an optional embodiment, two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that independent power control adjustment states are used between SRS transmission and PUSCH transmission. It can be understood that two power control adjustment state indexes are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that independent power control adjustment states are used between SRS transmission and PUSCH transmission.

[0152] In an optional embodiment, two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission, and it is indicated that independent power control adjustment states are adopted between SRS transmission and PUSCH transmission. It can be understood that two power control adjustment state indexes are configured for SRS transmission, and the power control adjustment states corresponding to these two power control adjustment state indexes are independent of the power control adjustment state adopted for PUSCH transmission, and it is indicated that independent power control adjustment states are adopted between SRS transmission and PUSCH transmission.

[0153] In an optional embodiment, two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state adopted for PUSCH transmission, and it is indicated that independent power control adjustment states are adopted between SRS transmission and PUSCH transmission. It can be understood that multiple power control adjustment state indexes are configured for SRS transmission, wherein the power control adjustment states corresponding to the two power control adjustment state indexes are independent of the power control adjustment state adopted for PUSCH transmission, and it is indicated that independent power control adjustment states are adopted between SRS transmission and PUSCH transmission.

[0154] When a high rate is required for uplink transmission, the UE needs to determine the transmission power of the SRS in the scenario where only part of the TRP (such as one TRP) is needed to support the downlink transmission capability between the terminal device and part of the TRP only supports the uplink transmission capability (sending SRS) between the terminal.

[0155] Specifically, the SRS transmit power may need to be determined in the following scenarios:

[0156] In some scenarios, the UE is not configured for PUSCH transmission on the activated uplink portion of the bandwidth of the first carrier of the first serving cell, and the UE cannot determine how to perform power control when sending SRS. In this scenario, the UE needs to determine the first transmit power for sending SRS.

[0157] In other scenarios, although the UE is configured with PUSCH transmission on the activated uplink portion of the bandwidth of the first carrier of the first service cell, the network device instructs the UE to use independent power control adjustment states between SRS transmission and PUSCH transmission. In this scenario, the UE needs to additionally determine the first transmission power for sending SRS.

[0158] In other scenarios, although the UE is configured with PUSCH transmission on the activated uplink portion of the bandwidth of the first carrier of the first serving cell, and is configured with two power control adjustment states for SRS transmission, these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission. In this scenario, the UE needs to additionally determine the first transmit power for sending SRS.

[0159] In other scenarios, although the UE is configured with PUSCH transmission on the activated uplink portion of the bandwidth of the first carrier of the first service cell, and is configured with two power control adjustment states for SRS transmission, these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, but the network device instructs the UE to use independent power control adjustment states between SRS transmission and PUSCH transmission. In this scenario, the UE needs to additionally determine the first transmit power for sending SRS.

[0160] In this embodiment, the UE determines a first transmit power for transmitting the SRS, wherein the first transmit power is associated with a first power control adjustment state corresponding to the SRS transmission.

[0161] For example, if the UE transmits SRS on the bandwidth part (BWP) b of the activated uplink (UL) of carrier f of serving cell c using the SRS power control adjustment state (i.e., the first index) with index l (i.e., the first power control adjustment state) based on the configuration of SRS-ResourceSet, the UE determines the transmission power P of the SRS at SRS transmission opportunity i. SRS,b,f,c (i,q s ,l)Satisfy:

[0162] Among them, the P CMAX,f,c (i) P O_SRS,b,f,c (q s ), M SRS,b,f,c (i), α SRS,b,f,c (q s ) and PL b,f,c (q d The meaning of the ) parameter can be found in the description above and will not be repeated here.

[0163] For the activated UL BWP b and SRS transmission opportunity i for carrier f of serving cell c:

[0164] (1) If srs-PowerControlAdjustmentStates indicates the same power control adjustment state for SRS transmission and physical uplink shared channel (PUSCH) transmission, then h b,f,c (i,l)=f b,f,c (i,l), where f b,f,c (i,l) is the current PUSCH power control adjustment state as defined in clause 7.1.1 [TS38.213];

[0165] (2) Alternatively, if the UE is not configured for PUSCH transmission on the activated UL BWP b of carrier f of serving cell c, or srs-PowerControlAdjustmentStates indicates that independent power control adjustment states are used between SRS transmission and PUSCH transmission (the transmit power for PUSCH transmission is associated with a second power control adjustment state, the second power control adjustment state corresponding to the second index), and tpc-Accumulation is not provided, or two power control adjustment states are configured for SRS transmission, and the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and tpc-Accumulation is not provided, or two power control adjustment states are configured for SRS transmission, the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that independent power control adjustment states are used between SRS transmission and PUSCH transmission, and tpc-Accumulation is not provided, then in,

[0166] δ SRS,b,f,c The values ​​are given in Table 7.1.1-1 [TS38.213];

[0167] δ SRS,b,f,c (m, l) is jointly encoded with other TPC commands, which are located in DCI format 2_3 carried on the PDCCH;

[0168] is the TPC command value set S i The sum of the TPC command values ​​in K SRS (i-i0)-1 symbol and K SRS (i) Receive the TPC command value set S between symbols i , where K SRS The (i-i0)-1 symbol is located before the SRS transmission opportunity i-i0, K SRS (i) The symbol is located before the SRS transmission opportunity i on the activated UL BWP b of the carrier f of the serving cell c for the SRS power control adjustment state 1, where K before the SRS transmission opportunity i-i0 SRS (i) symbol, which is earlier than the K before SRS transmission opportunity i SRS (i-i0) symbol, i0>0 is the smallest integer;

[0169] If SRS transmission is aperiodic, K SRS(i) is the number of symbols of the activated UL BWP b corresponding to carrier f of serving cell c after the last symbol of the corresponding PDCCH that triggers SRS transmission and before the first symbol of SRS transmission;

[0170] If SRS transmission is semi-persistent or periodic, K SRS (i) is K SRS,min The number of symbols, which is equivalent to the number of symbols per time slot The product of the minimum value provided by k2 in PUSCH-ConfigCommon and the activated UL BWP b for carrier f of serving cell c;

[0171] - If the first symbol of the SRS transmission opportunity occurs at T proc,2 Within, which is located after the last symbol received by the PDCCH, wherein for the PDCCH, the UE detects the DCI format provided by the TPC command, the UE may delay the application of TPC until the above conditions are invalid. proc,2 is the PUSCH preparation time corresponding to the UE processing capability, assuming d 2,1 =0, and μ corresponds to the minimum SCS configuration between the SCS configuration of the PDCCH carrying the DCI format and the SCS configuration of the SRS.

[0172] If at SRS transmission opportunity i-i0, the UE reaches the maximum power of the activated UL BWP b for carrier f of serving cell c, and Then h b,f,c (i,l)=h b,f,c (i-i0,l);

[0173] If at SRS transmission opportunity i-i0, the UE reaches the minimum power of the activated UL BWP b for carrier f of serving cell c, and Then h b,f,c (i,l)=h b,f,c (i-i0,l);

[0174] Optionally, if the higher layer provides the activated UL BWP b for carrier f of serving cell c and the corresponding SRS power control adjustment state l for P O_SRS,b,f,c (q s ) value configuration, or for α SRS,b,f,c (q s ) value configuration: h b,f,c (k,l)=0,k=0,1,…,i

[0175] Otherwise, h b,f,c (0, l) = ΔP rampup,b,f,c +δ b,f,c

[0176] in:

[0177] δ b,f,c is the TPC command value indicated in a random access response grant corresponding to a physical random access channel (PRACH) transmission of a Type-1 random access procedure, or corresponding to an MsgA transmission of a Type-2 random access procedure with a random access response (RAR) message for feedback, or δ b,f,c yes

[0178] The TPC command value indicated in a successful RAR corresponding to the MsgA transmission for the Type-2 random access procedure. ΔP rampup,b,f,c =min[max(0,P CMAX,f,c -(P O_SRS,b,f,c (q s )+10log 10 (2 μ ·M SRS,b,f,c (i))+ α SRS,b,f,c (q s )·PL b,f,c (q d ))),ΔPrampup_requested,b,f,c];

[0179] Wherein, ΔPrampup_requested,F,C,( is provided by the higher layer, which corresponds to the total power capacity requested by the higher layer for the activated UL BWP b of carrier f serving cell c from the first to the last preamble.

[0180] (3) Alternatively, if the UE is not configured for PUSCH transmission on the activated UL BWP b of carrier f of serving cell c, or if srs-PowerControlAdjustmentStates indicates that independent power control adjustment states are used between SRS transmission and PUSCH transmission, and tpc-Accumulation is provided, and K before the first symbol of SRS transmission opportunity i SRB,min Symbol UE detects DCI format 2_3, then h b,f,c (i,l)=δ SRS,b,f,c (i, l), where δ is provided in Table 7.1.1-1 [TS38.213] SRS,b,f,c The absolute value of .

[0181] If srs-PowerControlAdjustmentStates indicates that the same power control adjustment state is used for both SRS and PUSCH transmissions, the power control adjustment state for SRS transmission opportunity i is updated at SRS resource set q. s Otherwise, the power control adjustment state of SRS transmission opportunity i is updated at the beginning of each SRS resource in SRS resource set q. s The start of the first transmitted SRS resource.

[0182] Exemplarily, each of the above power control adjustment states has a corresponding power adjustment value.

[0183] Furthermore, before step S401, the network device may also send configuration information to the UE, where the configuration information is used to configure the first power control adjustment state and / or the second power control adjustment state.

[0184] It is understood that after determining the first transmit power of the SRS, the UE may directly transmit the SRS at the first transmit power, or may wait for another triggering event to occur after determining the first transmit power to transmit the SRS at the first transmit power. Therefore, the above step S401 may be implemented independently or in conjunction with step S402.

[0185] S402. The UE transmits an SRS on an activated uplink portion of a bandwidth of a first carrier of a first serving cell at a first transmit power. Correspondingly, the network device receives the SRS.

[0186] After determining the first transmit power, the UE may transmit the SRS to the network device on the activated uplink portion of the bandwidth of the first carrier of the first serving cell at the first transmit power.

[0187] It can be understood that this step is optional, which is indicated by a dotted line in the figure. It can be implemented in conjunction with the above-mentioned step S401 or as an independent embodiment.

[0188] According to a communication method provided by an embodiment of the present application, if PUSCH transmission on the activated uplink portion of the bandwidth of the first carrier of the first service cell is not configured, or an independent power control adjustment state is indicated between SRS transmission and PUSCH transmission, or two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, or two power control adjustment states are configured for SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and an independent power control adjustment state is indicated between SRS transmission and PUSCH transmission, the terminal device can determine the power in a manner associated with the power control adjustment state corresponding to the SRS transmission and then send the SRS to achieve uplink transmission.

[0189] It can be understood that in the above embodiments, the methods and / or steps implemented by the terminal device can also be implemented by components that can be used for the terminal device (such as chips or circuits); the methods and / or steps implemented by the network device can also be implemented by components that can be used for the network device (such as chips or circuits).

[0190] The above primarily describes the solutions provided by the embodiments of the present application from the perspective of interaction between various network elements. Accordingly, the embodiments of the present application also provide a communication device for implementing the various methods described above. The communication device can be a terminal device in the above method embodiments, or a component usable in a terminal device; alternatively, the communication device can be a network device in the above method embodiments, or a component usable in a network device. It will be understood that, to implement the aforementioned functions, the communication device includes hardware structures and / or software modules corresponding to each function. Those skilled in the art will readily appreciate that, in conjunction with the various exemplary units and algorithm steps described in the embodiments disclosed herein, the present application can be implemented in hardware or a combination of hardware and computer software. Whether a function is implemented in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application.

[0191] In the embodiment of the present application, the functional modules of the communication device can be divided according to the above method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. In actual implementation, there may be other division methods.

[0192] Based on the same concept of the above communication method, the present application also provides the following communication device:

[0193] As shown in Figure 5 , a communication device 500 includes a processing unit 510 and a transceiver unit 520. The communication device 500 is used to implement the functions of the terminal device or network device in the method embodiment shown in Figure 4 above.

[0194] When the communication device 500 is used to implement the function of the terminal device in the method embodiment shown in Figure 4: the processing unit 510 is used to execute step S401, that is, determine the first transmission power, and is also used to generate SRS; and the transceiver unit 520 is used to implement the function of the terminal device in step S402 in the embodiment shown in Figure 4, that is, send SRS with the first transmission power.

[0195] When the communication apparatus 500 is used to implement the function of the network device in the method embodiment shown in FIG4 : the transceiver unit 520 is used to implement the function of the network device in step S402 in the embodiment shown in FIG4 , that is, to receive the SRS at the first transmission power.

[0196] A more detailed description of the processing unit 510 and the transceiver unit 520 can be directly obtained by referring to the relevant description in the method embodiment shown in FIG4 , and is not repeated here.

[0197] When the communication device is a chip used in a terminal device, the terminal device chip implements the functions of the terminal device in the above method embodiments. The terminal device chip receives information from other modules in the terminal device (such as a radio frequency module or antenna), and the information is sent by the network device to the terminal device; or the terminal device chip sends information to other modules in the terminal device (such as a radio frequency module or antenna), and the information is sent by the terminal device to the network device.

[0198] When the communication device is a chip used in a network device, the network device chip implements the network device functions of the above method embodiments. The network device chip receives information from other modules in the network device (such as a radio frequency module or antenna), and the information is sent by the terminal device to the network device; or the network device chip sends information to other modules in the network device (such as a radio frequency module or antenna), and the information is sent by the network device to the terminal device.

[0199] In addition, it should be noted that the aforementioned transceiver unit and / or processing unit may be implemented through virtual modules, for example, the processing unit may be implemented through a software function unit or a virtual device, and the transceiver unit may be implemented through a software function or a virtual device. Alternatively, the processing unit or transceiver unit may also be implemented through a physical device, for example, if the device is implemented using a chip / chip circuit, the transceiver unit may be an input / output circuit and / or a communication interface, performing input operations (corresponding to the aforementioned receiving operations) and output operations (corresponding to the aforementioned sending operations); the processing unit may be an integrated processor, microprocessor, or integrated circuit.

[0200] As shown in Figure 6, communication device 600 includes a processor 610 and may also include an interface circuit 620. Processor 610 and interface circuit 620 are coupled to each other. It will be understood that interface circuit 620 may be a transceiver or an input / output interface. Optionally, communication device 600 may also include a memory 630 (indicated by a dotted line in the figure) for storing instructions executed by processor 610, input data required by processor 610 to execute instructions, or data generated after processor 610 executes instructions.

[0201] When the communication device 600 is used to implement the function of the terminal device in the method embodiment shown in Figure 4: the processor 610 is used to execute step S401, that is, determine the first transmission power, and is also used to generate SRS; and the interface circuit 620 is used to implement the function of the terminal device in step S402 in the embodiment shown in Figure 4, that is, send SRS with the first transmission power.

[0202] When the communication apparatus 600 is used to implement the function of the network device in the method embodiment shown in FIG4 : the interface circuit 620 is used to implement the function of the network device in step S402 in the embodiment shown in FIG4 , ie, to receive the SRS at the first transmission power.

[0203] A more detailed description of the processor 610 , the interface circuit 620 , and the memory 630 can be directly obtained by referring to the relevant description in the method embodiment shown in FIG4 , and is not repeated here.

[0204] The division of modules in this application is illustrative and represents only a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional modules in the examples of this application may be integrated into a single processor, exist physically as separate modules, or two or more modules may be integrated into a single module. The aforementioned integrated modules may be implemented in either hardware or software functional modules.

[0205] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0206] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program or instruction is stored. When the computer program or instruction is executed, the method in the above embodiment is implemented.

[0207] An embodiment of the present application further provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute the method in the above embodiment.

[0208] An embodiment of the present application also provides a communication system, including the above-mentioned communication device.

[0209] The present application also provides a circuit, which is coupled to a memory and is used to execute the method shown in the above embodiment. The circuit may include a chip circuit.

[0210] When the above-mentioned communication device is a module applied to a network device, the network device module implements the functions of the network device in the above-mentioned method embodiment. The network device module receives information from other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the UE to the network device; or, the network device module sends information to other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the network device to the UE. The network device module here can be a baseband chip of the network device, or a CU, DU or other module, or a device under the open radio access network (O-RAN) architecture, such as an open CU, open DU and other devices.

[0211] It should be noted that the above units or one or more of the units can be implemented by software, hardware, or a combination of the two. When any of the above units or units is implemented by software, the software exists in the form of computer program instructions and is stored in a memory, and a processor can be used to execute the program instructions and implement the above method flow.

[0212] In this application, a processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or all or part of the circuitry in the aforementioned devices used to implement processing functions, which may implement or execute the various methods, steps, and logic block diagrams disclosed in this application. A general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in this application may be directly implemented as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0213] When the above units or units are implemented in hardware, the hardware can be any one or any combination of a CPU, a microprocessor, a digital signal processing (DSP) chip, a microcontroller unit (MCU), an artificial intelligence processor, an ASIC, a SoC, an FPGA, a PLD, a dedicated digital circuit, a hardware accelerator or a non-integrated discrete device, which can run the necessary software or not rely on the software to execute the above method flow.

[0214] Optionally, an embodiment of the present application further provides a chip system, comprising: at least one processor and an interface, wherein the at least one processor is coupled to a memory via the interface, and when the at least one processor executes a computer program or instruction in the memory, the chip system executes the method in any of the above method embodiments. Optionally, the chip system may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiments of the present application.

[0215] The memory in the present application may also be a circuit or any other device capable of implementing a storage function for storing program instructions and / or data. A memory is any other medium that can be used to carry or store a desired program code in the form of an instruction or data structure and can be accessed by a computer, but is not limited thereto. For example, the memory may be a non-volatile memory, such as a digital versatile disc (DVD), a hard disk drive (HDD), or a solid-state drive (SSD), or a volatile memory, such as a random-access memory (RAM).

[0216] It should be understood that in the description of this application, unless otherwise specified, " / " indicates that the objects associated with each other are in an "or" relationship. For example, A / B can mean A or B; where A and B can be singular or plural. Also, in the description of this application, unless otherwise specified, "multiple" means two or more than two. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or plural. In addition, to facilitate the clear description of the technical solutions of the embodiments of this application, in the embodiments of this application, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that words such as "first" and "second" do not limit the quantity or execution order, and words such as "first" and "second" do not necessarily mean different. At the same time, in the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner to facilitate understanding.

[0217] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means.

[0218] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art can understand and implement other changes to the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple situations. A single processor or other unit can implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0219] It is understood that the various numbers used in the embodiments of this application are merely for ease of description and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of the processes should be determined by their functions and inherent logic.

[0220] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0221] The components in the device of the embodiment of the present application can be merged, divided, or deleted according to actual needs. Those skilled in the art can combine or combine the different embodiments and features of the different embodiments described in this specification.

[0222] In this application, under the premise of no logical contradiction, the examples can reference each other, for example, the methods and / or terms between method embodiments can reference each other, for example, the functions and / or terms between device embodiments can reference each other, for example, the functions and / or terms between device examples and method examples can reference each other.

Claims

1. A communication method, characterized in that: The method comprises: If physical uplink shared channel transmission on the activated uplink portion of the bandwidth of the first carrier of the first serving cell is not configured; or If it is instructed to use independent power control adjustment states between the sounding reference signal transmission and the physical uplink shared channel transmission; or If two power control adjustment states are configured for sounding reference signal SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission; or If two power control adjustment states are configured for SRS transmission, the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that independent power control adjustment states are used between SRS transmission and PUSCH transmission; A first transmit power is determined, wherein the first transmit power is associated with a first power control adjustment state corresponding to the sounding reference signal transmission.

2. The method according to claim 1, characterized in that The method further comprises: The sounding reference signal is sent on the activated uplink portion bandwidth of the first carrier of the first serving cell at the first transmit power.

3. The method according to claim 1 or 2, characterized in that The first power control adjustment state corresponds to a first index, and the second power control adjustment state corresponding to the physical uplink shared channel transmission corresponds to a second index.

4. The method according to claim 3, characterized in that The method further comprises: Configuration information is received, where the configuration information is used to configure the first power control adjustment state and / or the second power control adjustment state.

5. The method according to claim 3 or 4, characterized in that The first transmission power is related to the power control adjustment state h at the carrier f, the uplink part bandwidth b, the serving cell c, and the transmission timing i of the sounding reference signal b,f,c (i,l) association, wherein b is the identifier of the activated uplink portion of the bandwidth, f is the identifier of the first carrier, c is the identifier of the first serving cell, i is the index of the transmission timing of the sounding reference signal, and l is the first index.

6. The method according to claim 5, characterized in that If the transmit power control-accumulation amount tpc-Accumulation is not provided, the h b,f,c (i,l) satisfies: Among them, δ SRS,b,f,c (m, l) is jointly encoded with other TPC commands, and the other TPC commands are located in the downlink control information DCI format 2_3 carried in the physical downlink control channel.

7. The method according to claim 5, characterized in that If the transmit power control-accumulation amount tpc-Accumulation is provided, and K before the first symbol of SRS transmission opportunity i SRS,min Symbol detected DCI format 2_3, the h b,f,c (i,l) satisfies: h b,f,c (i,l)=δ SRS,b,f,c (i,l) Among them, δ SRS,b,f,c (i, l) is jointly encoded with other TPC commands, and the other TPC commands are located in DCI format 2_3 carried on the physical downlink control channel.

8. A communication method, characterized in that: The method comprises: If the physical uplink shared channel transmission of the terminal device on the activated uplink portion of the bandwidth of the first carrier of the first serving cell is not configured; or If it indicates that independent power control adjustment states are used between the sounding reference signal transmission and the physical uplink shared channel transmission of the terminal device, or two power control adjustment states are configured for sounding reference signal SRS transmission, and these two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission; or If two power control adjustment states are configured for SRS transmission, the two power control adjustment states are independent of the power control adjustment state used for PUSCH transmission, and it is indicated that independent power control adjustment states are used between SRS transmission and PUSCH transmission; Receive the sounding reference signal sent by the terminal device at a first transmission power on the activated uplink partial bandwidth of the first carrier of the first service cell, wherein the first transmission power is associated with a first power control adjustment state corresponding to the transmission of the sounding reference signal.

9. The method according to claim 8, characterized in that The first power control adjustment state corresponds to a first index, and the second power control adjustment state corresponding to the physical uplink shared channel transmission corresponds to a second index.

10. The method according to claim 9, characterized in that The method further comprises: Send configuration information, where the configuration information is used to configure the first power control adjustment state and / or the second power control adjustment state.

11. The method according to claim 9 or 10, characterized in that The first transmission power is related to the power control adjustment state h at the carrier f, the uplink part bandwidth b, the serving cell c, and the transmission timing i of the sounding reference signal b,f,v (i,l) association, wherein b is the identifier of the activated uplink portion of the bandwidth, f is the identifier of the first carrier, c is the identifier of the first serving cell, i is the index of the transmission timing of the sounding reference signal, and l is the first index.

12. The method according to claim 11, characterized in that If the transmit power control-accumulation amount tpc-Accumulation is not provided, the h b,C,( (i,l) satisfies: Among them, δ SRS,b,f,c (m, l) is jointly encoded with other TPC commands, and the other TPC commands are located in the downlink control information DCI format 2_3 carried in the physical downlink control channel.

13. The method according to claim 11, characterized in that If the transmit power control-accumulation amount tpc-Accumulation is provided, and K before the first symbol of SRS transmission opportunity i SRS,min Symbol detected DCI format 2_3, the h b,f,c (i,l) satisfies: h b,f,c (i,l)=δ SRS,b,f,c (i,l) Among them, δ SRS,b,f,c (m, l) is jointly encoded with other TPC commands, and the other TPC commands are located in DCI format 2_3 carried on the physical downlink control channel.

14. A communication device, characterized in that: The method comprises a unit for implementing the method according to any one of claims 1 to 7, or comprises a unit for implementing the method according to any one of claims 8 to 13.

15. A communication device, characterized in that: The method comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method according to any one of claims 1 to 7 or the method according to any one of claims 8 to 13 when executing the computer program.

16. A chip, characterized in that: The chip is used to execute the method as described in any one of claims 1 to 7, or to execute the method as described in any one of claims 8 to 13.

17. A chip module, characterized in that: The invention comprises an interface component and a chip, wherein the chip is used to execute the method according to any one of claims 1 to 7, or execute the method according to any one of claims 8 to 13.

18. A computer-readable storage medium, characterized in that: The storage medium stores a computer program or an instruction. When the computer program or the instruction is executed by the communication device, the method according to any one of claims 1 to 7 or the method according to any one of claims 8 to 13 is implemented.

19. A communication system, characterized in that: The method comprises a first communication device and a second communication device, wherein the first communication device is used to implement the method according to any one of claims 1 to 7, and the second communication device is used to implement the method according to any one of claims 8 to 13.

20. A computer program product, characterized in that The computer program product comprises program instructions, and when the program instructions are executed, the method according to any one of claims 1 to 7 is implemented, or the method according to any one of claims 8 to 13 is implemented.

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